20W Blue Violet Laser Module PWM Engraver Head for NEJE MASTER Engraving Machine. Mainly applicable for cutting, drawing etc. The power can be adjusted by PWM. Built-in drive protection circuit including surge protection, overvoltage protection for safety use.Stable performance, high working efficiency, long service life. It is heavier, not suitable for engraving, suitable for cutting. Item Type: Laser Module Interface Specification: 4pin PH2.0 (red: 12V, black: GND, yellow: PWM, green: temperature signal) Wavelength: 450nm Radiator Size: 30x80mm Material: Copper + Aluminum Weight: 202g Drive Position: Built-In Power: PWM adjustable Drive Protection: Surge Protection, Overvoltage Protection Input Power: Approx. 12V2A 20W (without fan power) Output Optical Power: 5.5W Line Length: 300mm Control Line Installation Method: pluggable Fan Size: 30x10mm Fan Speed: 15000rpm Controllable Temperature. Please apply this module under the premise of safety protection! NEJE Master comes standard with 12V2A charger. If you want to upgrade your old machine, you need to prepare another 12V3A power supply.
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